학술논문
Pairing-quadrupole interplay in the neutron-deficient tin nuclei: First lifetime measurements of low-lying states in 106,108Sn
Document Type
article
Author
M. Siciliano; J.J. Valiente-Dobón; A. Goasduff; F. Nowacki; A.P. Zuker; D. Bazzacco; A. Lopez-Martens; E. Clément; G. Benzoni; T. Braunroth; F.C.L. Crespi; N. Cieplicka-Oryńczak; M. Doncel; S. Ertürk; G. de France; C. Fransen; A. Gadea; G. Georgiev; A. Goldkuhle; U. Jakobsson; G. Jaworski; P.R. John; I. Kuti; A. Lemasson; T. Marchi; D. Mengoni; C. Michelagnoli; T. Mijatović; C. Müller-Gatermann; D.R. Napoli; J. Nyberg; M. Palacz; R.M. Pérez-Vidal; B. Sayği; D. Sohler; S. Szilner; D. Testov; M. Zielińska; D. Barrientos; B. Birkenbach; H.C. Boston; A.J. Boston; B. Cederwall; J. Collado; D.M. Cullen; P. Désesquelles; C. Domingo-Pardo; J. Dudouet; J. Eberth; F.J. Egea-Canet; V. González; L.J. Harkness-Brennan; H. Hess; D.S. Judson; A. Jungclaus; W. Korten; M. Labiche; A. Lefevre; S. Leoni; H. Li; A. Maj; R. Menegazzo; B. Million; A. Pullia; F. Recchia; P. Reiter; M.D. Salsac; E. Sanchis; O. Stezowski; Ch. Theisen
Source
Physics Letters B, Vol 806, Iss , Pp 135474- (2020)
Subject
Language
English
ISSN
0370-2693
Abstract
The lifetimes of the low-lying excited states 2+ and 4+ have been directly measured in the neutron-deficient 106,108Sn isotopes. The nuclei were populated via a deep-inelastic reaction and the lifetime measurement was performed employing a differential plunger device. The emitted γ rays were detected by the AGATA array, while the reaction products were uniquely identified by the VAMOS++ magnetic spectrometer. Large-Scale Shell-Model calculations with realistic forces indicate that, independently of the pairing content of the interaction, the quadrupole force is dominant in the B(E2;21+→0g.s.+) values and it describes well the experimental pattern for 104−114Sn; the B(E2;41+→21+) values, measured here for the first time, depend critically on a delicate pairing-quadrupole balance, disclosed by the very precise results in 108Sn.